Question

How to add rational number​

Answer 1

Answer:

Step-by-step explanation:

Adding Rational Numbers

For her first two orders, Samantha needs to add her rational numbers together. To do this, Samantha first finds a common denominator. The common denominator is the least common multiple of the denominators. So, for her first order of 1/8 + 1/4 of a pie, Samantha finds the least common multiple between 8 and 4. Looking at these two numbers and knowing the multiples of each, Samantha sees that 8 is the least common multiple because 4 can be multiplied by 2 to get 8.

Now that Samantha has found her common denominator, she now needs to change her rational numbers so that they both have the same denominator. The 1/8 already has 8 as the denominator, so it doesn't have to change. The 1/4 needs to be changed. To make this change, Samantha multiplies both the numerator and the denominator by the number that will turn the denominator into the common denominator. In this case, it is 2. So Samantha multiplies the numerator by 2 and the denominator by 2. She gets 2/8 for her new number. Her addition problem now is 1/8 + 2/8.

Now that the denominators are the same, Samantha can now go ahead and simply add the numerators together. Adding the numerators, she gets 1 + 2 = 3. Her answer is the sum over the common denominator: 3/8. Because this fraction is already as simplified as it can get, Samantha has found her answer. She needs to cut 3/8 of a pie for this order.

Answer 2

Answer:

if you want to add rational number then follow the steps as mentioned below

for example

-2/3 + 10/3

here the denominater is same then - ,+ =-

so we will minus it

answer will be 8/3

hope it will be useful

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